Nonskid device



`April 30, 1935. J, PETERSON v 1,999,944

NoNskID DEVICE 'y Filed Jan. 5, 1934 nihil s i l Patented pr. 30, 1935UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to non-skid devices for motor vehicles and hasfor the primary object the provision of a device of the above statedcharacter which may be easily and quickly applied or removed from aWheel and its tire without the necessity of elevating the tire from theground and when applied will provide efficient traction to the tireunder all road conditions and will prevent both lateral andcircumferential skidding of the tire and may be readily adjusted totires of diierent sizes and also to wheels of different types.

With these and other objects in view this invention consists in certainnovel features of construction, combination and arrangement of parts tobe hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had tothe following description and accompanying drawing, in which Figure l isa fragmentary side elevation illustrating a motor vehicle Wheel and itstire with an anti-skid device applied thereto and constructed inaccordance with my invention.

Figure 2 is a transverse sectional view illustrating the same.

Figure 3 is a perspective view illustrating one of the non-skid plates.

Referring in detail to the drawing, the numeral l indicates a non-skiddevice or unit to be applied to a tire and its Wheel, as shown inFigures l and 2 of the drawing, and it is to be understood that the tireand Wheel may have any number of such units installed thereto withoutthe necessity of elevating the tire away from the ground.

The unit l consists of a pair of non-skid plates 2 each of substantiallyrectangular shape and provided with openings 3. The plates 2 are joinedby links '3. As Will be seen from the drawing, these links pass throughcertain of the apertures 3 of the plates and when the device is appliedto the tire the links are positioned over the central portion of thetire with the plates disposed at an inclination to each other andthereby conforming to the transverse curvature I of the tire. The outerfaces of the plates 2 have formed integrally therewith ribs 5 each ofsubstantially triangular shape in cross section and the ribs of eachplate intersect one another and are arranged at right angles toy eachother. The ribs are adapted to bite into the roadway and will preventthe tire from skidding laterally or circumferentially.

Substantially V-shaped elements 6 have their ends bent toy form hooks 'lengageable with the other apertures 3 of the plates. Chains or flexibleelements 8 are connected with the elements 6 and the end links receivehooks 9 formed integrally With connecting rods I9. The rods Il) extendthrough apertures in a connecting plate Il and have threaded thereonWing nuts l2. The connecting plate H is arranged transversely of thefelly of the wheel and is bent upon itself to-form hook-shaped portions3 each bifurcated to permit the rod `Ill to extend therethrough. Theends of the hook-shaped portions are bent or offset, as shown at I4, toengage With the flanges of the rim l5 for the tire, Of course, this rimmay be of the demountable type or may be the felly of the Wheel. Theoffset portie-ns I4 prevent the hook-shaped portions I 3 from digginginto the Walls of the tire and also aid in retaining the attaching plateto the rim or the felly. A device of this character maybe readilyadjusted to tires of different sizes and to Wheels of different types.

Having described the invention, I claim: An anti-skid device comprisinga non-skid tread medium, flexible elements connected to said f treadmedium, attaching rods connected with the flexible elements and screwthreaded, a connecting plate apertured to receive said rods and engagingthe felly of a wheel, nuts threaded to said rods and engaging theconnecting plate, said connecting plate bent upon itself to formhookshaped portions bifurcated to receive the rods and having their endsoffset to engage With the anges of the rim of a tire.

JOHN PETERSON.

